Lewy Body Dementia

Lewy Body Dementia is indexed under Neurological & Neurodegenerative, Dementia. Also known as LBD, dementia with Lewy bodies, DLB.

US prevalence

~1.4 million Americans Source: NIH NINDS — Dementia with Lewy Bodies Consortium. This figure comes from a professional society, registry, or study rather than a federal source. Label: REPORTED.

ICD-10-CM codes

G31.83

Typical onset

Typically >50 years; mean onset ~70

Course

progressive

Body systems

neurological

Sex differences

Slightly more common in men

Racial and ethnic differences

Limited data; likely underdiagnosed

What this page does not establish

These figures describe populations, not individuals, and none of them is a diagnosis or a treatment recommendation. Prevalence estimates are approximate and reflect published ranges. Disparity figures are reported patterns, not causes.

Taxonomy last reviewed 2026-05-19. Each figure on the interactive page carries its own source and retrieval date, which can be later than this review.

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